An occasional refresher never hurts.
Maltese professor shares info with Papadopoulos about hacked emails. Papadopoulos reports back to campaign about said emails. Platform plank on Ukraine is changed. Trump Jr declares he "loves it" when Clinton dirt meeting is set up. Meeting with adoption lawyer is set up. Lawyer actually wants to talk sanctions. But cover story about adoption is drafted by Trump himself on flight back from summit in Europe (question: when did Trump learn about this meeting). Manafort offers "briefing" on Trump sanctions policy to Russian magnate. Papadopoulos goes to Athens for meetings with pro-Russian defense minister. Same minister has meeting with Putin in Athens. Russians release Podesta emails through Wikileaks. Peter W Smith, apparently acting as a cutout for campaign, sets out on search for Clinton emails.
So what is missing? Well no signed memorandum of understanding between Russians and campaign. So therefore, no collusion!
What else is missing? Money or electronic trail providing evidence of quid pro quo. Remains to be seen if this turns up. Given how feckless the Trumpies have been, I would not be surprised if this turns up. Or if one of the principals flips and provides testimony about quid pro quo.
What else? Let's not forget Cambridge Analytica. Was there a sharing of information about voter targeting with the Russians? Or discussion about strategy with Russian entities? Maybe. Maybe not.
Meanwhile...enjoy that victory lap.